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Free Readability Checker
Score Your Writing Instantly

Instantly check your text's readability score and reading level across 6 proven formulas - free, with no sign-up.

Last updated: July 2026

Text to Analyse *

0 / 150 words

Readability Metric optional

Target Audience Age Group optional

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Your readability report will appear here

Paste your text and click Check Readability.

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6 Readability Metrics

Results in under 5s

Rated 4.9/5 - 645+ reviews

How it works

How to Check Readability in 4 Steps

Run a free readability test on any text and get your reading-level score in seconds.

Step 01

Paste Your Text

Paste any essay, blog post, report, or content into the box. There is no length limit and no sign-up needed.

Step 02

Pick a Metric

Choose a readability metric like Flesch-Kincaid or Gunning Fog, or leave it on Any to see all of them.

Step 03

Set Your Audience

Pick the age group you are writing for so the tool can tell you whether your text is a good match.

Step 04

Check Readability

Get an instant readability score across all metrics, plus text stats and an audience-match verdict.

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Questions

Frequently Asked Questions

Everything you need to know about readability checking and our tool.

What is a readability checker?

A readability checker analyses how easily your text can be read and understood. It looks at factors like sentence length, word complexity, and syllable count to produce a readability score and grade level, so you know how accessible your writing is to its intended audience.

How is a readability score calculated?

Readability is calculated with established formulas such as Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, SMOG Index, Coleman-Liau, and Automated Readability Index (ARI). Each uses a mix of average sentence length, syllable count, and complex-word ratio to estimate the reading level required to understand the text.

What is a good readability score?

On the Flesch Reading Ease scale, 60 to 70 is considered standard and easily understood by most adults. For general web content, aim for 60 or higher. Academic or technical writing naturally scores lower. The best target depends on your audience, which is why our tool includes an audience-match check.

How can I improve my readability score?

To improve readability, shorten long sentences, swap complex words for simpler ones, and break large paragraphs into smaller chunks. You can also run your text through our paraphrasing tool or grammar checker to simplify wording and tighten sentences, then re-check the score.

Is the readability checker free to use?

Yes. You can check readability free with no sign-up, up to 3 checks per visit. Create a free account for more checks across all 30+ writing tools, and paid plans add unlimited checks plus Word and PDF report downloads.

Which readability formulas does this tool use?

The readability checker calculates six formulas at once: Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG Index, Coleman-Liau Index, and the Automated Readability Index (ARI). Seeing all six side by side gives you a fuller picture of your reading level than any single score.

Can I use the readability checker for SEO and web content?

Yes. Clear, readable content keeps visitors on the page longer and is easier for search engines to understand, so many writers aim for a Flesch Reading Ease score of 60 or higher for web copy. Use the checker to test blog posts, landing pages, and product descriptions before you publish.

Who can use the readability test tool?

Anyone who writes can use it - students, teachers, bloggers, marketers, and professionals. It helps you make sure your text is clear and suitable for its intended readers, whether you are writing an essay, an article, an email, or web copy.